Bug Hunting Session
Bug 69579 - SCANNING: dpi-values are not processed correctly
Summary: SCANNING: dpi-values are not processed correctly
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
4.1.1.2 release
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard: needScanner
Keywords:
Depends on:
Blocks: Scanning Image-DPI
  Show dependency treegraph
 
Reported: 2013-09-19 14:40 UTC by bordfeldt
Modified: 2019-03-05 19:01 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
DPI locked (15.76 KB, image/png)
2014-08-07 03:04 UTC, Veek.M
Details

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Description bordfeldt 2013-09-19 14:40:22 UTC
LO 4.1.1.2 on Ubuntu 12.04x64

I used the scanning tool in LO writer for the first time, but there occured some problems with the dpi-values in the resolution-dropdown-list. This list offers six options: 75, 100, 300, 600, 1200 or 2400 dpi. All these options are enabled, but only 75 or 2400 dpi can be choosed. I wanted to scan with 300 dpi, but this wasn't possible. So I choosed 75 dpi, but the image was scanned in  2400 dpi.
Comment 1 bordfeldt 2014-01-30 18:34:32 UTC
Problem stays in 4.2.0.4

The resolution can't be set correctly. The resolution-dropdown-list allows only 75 or 2400 dpi. Pictures are always scanned in 75 dpi. Other settings are ignored.
Comment 2 Veek.M 2014-08-07 03:04:38 UTC
Created attachment 104187 [details]
DPI locked

In LO 4.2.5.2, Debian Wheezy Backports, AMD , I can do Insert->Image->Scan->Select Source and pick the res i want and it works fine, repeated 3-4 times. However, a couple of times it locked up and I could not set the res(dpi) and had to close the app.
Comment 3 Joel Madero 2015-02-26 04:44:12 UTC
Please provide clear reproducible steps on how we do this. Marking as NEEDINFO - once you provide complete reproducible steps set the bug to UNCONFIRMED. Thanks
Comment 4 bordfeldt 2015-02-27 11:51:24 UTC
Problem stays in 4.4.1.2 and is now even more severe

The resolution still can't be set correctly. The resolution-dropdown-list shows 75, 100, 300, 600, 1200, 2400 and (now since 4.4.1.2) 4800 dpi. I can still choose only 75 or 4800 dpi. If I choose any other value dpi is set to 4800 instead.
Additionally since the upgrade to 4.4.1.2 the scan results in prescan and real scan are only dark grey and pixelated, while the scanner works well with other applications like gimp or easyscan. I think the reason is the worong dpi-value.
Comment 5 Joel Madero 2015-02-28 03:01:34 UTC
Again - we need clear reproducible steps. No one will confirm (or correct) the issue until you provide clear instructions and then set the bug to UNCONFIRMED.
Comment 6 bordfeldt 2015-02-28 18:37:06 UTC
Excuse me, Joel:

Here the steps to reproduce the bug:

1. Connecting the scanner (Canon LiDE110) via USB to the computer.
2. Open LO and create a new empty writer-document.
3. Choose menu->insert->media->scan->select source... 
4. The value in "device used" is "genesys:libusb:001:002" and in "Resoulution (DPI)" is 4800 preselected.
5. I try to change the dpi-value into another value, but if I select another entry as 4800 or 75, the value jumps immediately back to 4800. So I can only scan in 4800 or 75 dpi.
6. I change the values in scan mode: "mode" to "Color" and "depth" to 16
7. I click "Create preview".
8. The preview is useless.
9. I click "scan"
10. The scanned picture is useless.
Comment 7 Joel Madero 2015-02-28 18:59:13 UTC
Thanks for that additional info - really useful. I'll try to poke someone with a scanner.
Comment 8 Arnaud Versini 2015-02-28 19:21:14 UTC
All those issue confirmed on openSUSE with the same scanner.
Comment 9 Arnaud Versini 2015-02-28 19:21:35 UTC
With LibreOffice 4.4.0
Comment 10 tommy27 2016-04-16 07:26:56 UTC Comment hidden (obsolete)
Comment 11 bordfeldt 2016-05-15 17:46:01 UTC
On Windows 10 with LO 5.1.1.3 scanning works with the affected scanner without any problems. So I think, it's a linux-related thing. As soon as possible I will test this problem on a linux-system.
Comment 12 QA Administrators 2017-11-30 06:25:33 UTC Comment hidden (obsolete)
Comment 13 bordfeldt 2019-03-05 18:44:25 UTC
After a long time I now want to check my LO-bugs again.

After updated LO to 6.1.5.2 the problem still exists with the same scanner. I can still only choose 4800 or 75 dpi.
The difference is ... now the preview is okay, but the scanning takes even in 75 dpi 10 minutes and the image isn't scanned and not inserted in the document.
Comment 14 bordfeldt 2019-03-05 19:01:31 UTC
I have to correct myself. The scanned image is correctly inserted in the document, but after a lot of minutes.